Extract by Application

1- Download and install SceneArch-1.0.5.pkg
2- Make a shortcut to it in the launchpad
3- Drag & drop any Zip or Rar files on the shortcut
4- The app will extract all the files in a new folder
5- Open the new folder
6- Repeat the process until everything has been extracted.

Extract by Terminal

1- Open the Terminal.app

2- Install Homebrew (DO THIS ONLY THE FIRST TIME)

3- Install Unrar: brew install unrar (DO THIS ONLY THE FIRST TIME)

4- Change directory to where you downloaded the torrent
Example: cd /Users/John/Downloads/Torrent/Chocolat3.0
5- To unzip files: unzip -u -o \*.zip
6- To unrar files: unrar e -y first_rar_file.rar
7- Repeat the process until everything has been extracted.

What to do with .rar, .r01, .r02 … files?

These are RAR archive files, which is just a compression type similar to .zip but just split up into many files.
You need to install a program like RAR expander to extract the contents.